Meteorological Observations. XXVil 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General's Office, Calcutta, 
in the month of April, 1865. 
Hourly Means, &c. of the Observations and of the Hygrometrical elements 
dependent thereon. 












Suse. Range of the Barometer : = 5 Range of the Temperature 
por : J ‘ 
eeilagt ice for each hour during Ae for each hour during 
H BPS fu the month. bo the month, 
our | Ha 2 G& 
ao? . : eS ; ¢ 
aS | Max. Min. Diff, Sm | Max. Min. Diff. 
= = 
———— rt a 
Inches. | Inches.} Inches.| Inches.| 0 ty) ° 0 
eh 29,806 | 29.904 |29.700 | 0.204} 80.3] 834] 73.6 9.8 
1 793 899 | .686 218 | 79.9} 83.0.) 73.8 9.2 
2 -780 884 | .673 211) 79:0" 82.6 74.0 8.6 
3 770 -878 | .642 .236 | 792) 826 73.8 8.8 
4 771 875 | .646 .229 | 79.1 | 82.8 72.8 10.0 
5 .790 898 651 247 78.5 82.6 72.8 9.8 
6 804 913 652 261 78.5 82.4 72.4 10.0 
7 .826 -930 659 271 79.6 84.0 72.6 11.4 
8 848 962 .675 287 82.2 85.4 76.0 9.4 
9 863 974 | .697 .277 | 85.2 | 87.8 79.4 8.4 
10 864 .985 | .686 .299 | 87.6 st 6 82.0 7.6 
11 854 IMs |) 678 .298 | 89.7 2.7 84.0 8.7 
Noon, | .830 | .953| .651 | .302| 91.2 | 946| 85.7 8.9 
al (99 936 | .623 318 ||) 92:3" | 970 86.4, 10.6 
2 769 Okt -598 319 92.8 97.4 88.4 9.0 
3 744 .883 558 325 92.6 98.2 84.0 14,2 
4 729 855 | .543 312 | 91.0) 97.8 75.0 22.8 
5 725 .836 526 310 89.6 96.2 73.8 22.4 
6 740 543 .039 804 86.6 93,4 73.6 19.8 
7 763 .900 .099 801 84,2 90.8 72.8 18.0 
8 784 927 647 .280 82.9 86.8 73.8 13.0 
9 805 931 694 237 81.7 85.0 73.8 11.2 
10 815 .906 648 208 81.4 84.4 73.6 10.8 
il S811 919 | .648 271 | 80.5 | 84.4 73.4 11.0 


The Mean Height of the Barometer, as likewise the Dry and Wet Bulb Ther. 
mometer Means are derived from the ‘Observations made at the several hours 
during the month. 
